Tekla Perry writes: Zero Zero Robotics comes out of stealth today with the Hover Camera drone that uses face and body recognition to follow and photograph selected subjects. Company cofounder Meng Qiu Wang explains why he did the engineering in China (he built a team of 80 that worked two years on the project), and how this flying camera will evolve to be a navigation and control system for future home robots. According Zero Zero cofounder and CEO Meng Qiu Wang, "It has two cameras. The front viewing camera is a 13-megapixel camera that records video, but also has Simultaneous Localization and Mapping (SLAM), an algorithm that allows it to determine where it is. It also has a down-facing video camera, running an algorithm called optical flow, that looks at ground at 60 frames per second, so the Hover knows when it moves and can correct itself. These visual sensors are giving inputs and actual position and speed, meanwhile, the accelerometer and gyroscope gives relative position. All these signals are fed into the flight control algorithm, so when I throw it up in the air, it can just hover there." With a price of less than $600, it should compete well against the expensive DJI Phantom 4, which is already available on the market for $1400 and features autonomous flying and tracking features.
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